mirror of
https://github.com/josdejong/mathjs.git
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84 lines
2.3 KiB
JavaScript
84 lines
2.3 KiB
JavaScript
import assert from 'assert'
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import math from '../src/main'
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describe('factory', function () {
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it('should get a default instance of mathjs', function () {
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assert.strictEqual(typeof math, 'object')
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assert.deepStrictEqual(math.config(), {
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matrix: 'Matrix',
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number: 'number',
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precision: 64,
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predictable: false,
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epsilon: 1e-12,
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randomSeed: null
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})
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})
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it('should create an instance of math.js with custom configuration', function () {
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const math1 = math.create({
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matrix: 'Array',
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number: 'BigNumber'
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})
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assert.strictEqual(typeof math1, 'object')
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assert.deepStrictEqual(math1.config(), {
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matrix: 'Array',
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number: 'BigNumber',
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precision: 64,
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predictable: false,
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epsilon: 1e-12,
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randomSeed: null
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})
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})
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it('two instances of math.js should be isolated from each other', function () {
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const math1 = math.create()
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const math2 = math.create({
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matrix: 'Array'
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})
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assert.notStrictEqual(math, math1)
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assert.notStrictEqual(math, math2)
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assert.notStrictEqual(math1, math2)
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assert.notDeepStrictEqual(math1.config(), math2.config())
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assert.notDeepStrictEqual(math.config(), math2.config())
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// changing config should not affect the other
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math1.config({ number: 'BigNumber' })
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assert.strictEqual(math.config().number, 'number')
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assert.strictEqual(math1.config().number, 'BigNumber')
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assert.strictEqual(math2.config().number, 'number')
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})
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it('should apply configuration using the config function', function () {
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const math1 = math.create()
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const config = math1.config()
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assert.deepStrictEqual(config, {
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matrix: 'Matrix',
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number: 'number',
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precision: 64,
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predictable: false,
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epsilon: 1e-12,
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randomSeed: null
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})
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// restore the original config
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math1.config(config)
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})
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// TODO: test whether the namespace is correct: has functions like sin, constants like pi, objects like type and error.
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it('should throw an error when ES5 is not supported', function () {
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const create = Object.create
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Object.create = undefined // fake missing Object.create function
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assert.throws(function () {
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math.create()
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}, /ES5 not supported/)
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// restore Object.create
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Object.create = create
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})
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})
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